gehrckens



(No Model.) 2 SheetsSheet 1.. O. 0. GEHRGKENS.

DRIVING BELT.

No. 324,998. Patented Aug. 25, 1885.

2 VII/lI/I/I/l/l/l/A mtnesses Inventor N. PETERS. Phcku-Lflbographcr. Wahingion, n, C

(No Model.) 2 Sheets-Sheet 2.

O. 0. GEHROKENS DRIVING BELT. No. 324,993. Patented Aug. 25,-1886.

ilNirE STATES PATENT OFFICE.

CARL OTTO GEHRGKEXS, OF HAMBURG, GERMANY.

DRlVlNG-BELTJ SPECIFICATION forming part of Letters Patent No. 324,993, dated August 25,1885.

(No model.)

To all whom it may concern.-

Be it known that I, CARL OTTO GEHRUKENS, a subject of the Emperor of Germany, and a resident of Hamburg, in the German Empire, have invented certain new and useful Improvements in Driving-Belts, of which the following is a specification.

My invention relates to improvements in driving -be1ts for which I have obtained Letters Patent No. 309,7 ()8, of December 23, 1884; and the object of my improvements is to thicken such belts partly lengthwise in such a manner that they may be placed upon the pulleys in any convenient way, and yet be always correctly in position. of operation. To attain this object, I compose my belts of asuitable number of longitudinal strips, which are to be all of an equal, or nearly an equal, breadth, as illustrated by the accompanying drawings, in which- Figure 1 is a top view, and Fig. 2 a cross-section, of my belt, while Fig. 3 shows the belt in operation.

The strips aa" a, &c., are superposed, overlapping in series, or placed in the form of steps one above another, and connected by cementing, sewing, riveting, lacing, or other suitable means, thus producing belts of step or stair shaped cross-section, which will bring the thickening strip or portions of belt, serving to give greater thickness, always in its proper place upon the driving-pulleys, equivalent which side of the belt will come into operation.

In my Letters Patent No. 309,708, of De 5 cember 23, 1884, I have described drivingbelts withlongitudinal thickening-strips either under one edge or under the center line. I therefore do not claim any such device; but

What I desire to claim and secure by Let- 4o ters Patent is- 1. In a driving-belt, the combination of two or more longitudinal strips of an equal or nearly equal breadth, connected together to form a belt stair-shaped in cross-section, substantially as described and shown.

2. A driving-belt formed of two or more strips of an equal or nearly equal breadth, overlapping each other longitudinally, and forming a belt thicker along the center line than along the edges, substantially as described and shown.

In testimony that I claim the foregoing as my invention I have signed my name, in presence of two witnesses, this 13th day of Feb- 55 ruary, 1885.

CARL OTTO GEHR-GKENS.

WVitncsses:

ALEXANDER SPEeirr, EMIL HAASE. 

